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Troubleshooting
Trouble Probable Cause Solution
Low vacuum suction Hoses improperly connected Check and tighten hose clamp.
Filter housing improperly positioned Check and adjust position of filter housing.
Filter bag clogged with dirt and lint Clean filter bag.
Hoses clogged with dirt and lint Clean hoses.
Low supply voltage Check power supply and correct if necessary.
No foam/low volume of foam Improper detergent solution mixture Empty detergent tank and mix new solution
per package instructions.
Hard water Mix detergent at 6 oz. concentrate to 1 gal. of
water.
Cap not sealed or broken on detergent tank Check detergent tank cap and replace if
necessary.
Vacuum hose restricted Make sure vacuum hose nozzle opening is
not plugged.
Two-channel hose kinked or improperly
connected Check for kinks or improper connection and
correct if necessary.
Foam generator plugged Disassemble foam generator and clean.
Low supply voltage Check power supply and correct if necessary.
Faulty solenoid Replace solenoid (refer to Parts List(s)/Wiring
Diagrams) or send unit out for service.
Faulty switch on brush unit Replace switch (refer to Parts List(s)/Wiring
Diagrams) or send unit out for service.
Base Unit does not run
Bad main switch Replace main switch.
Bad motor Replace motor.
Supply cord damaged or disconnected Check connection; if necessary replace cord.
Bad wall outlet Use different outlet
Loose or faulty electrical connection Tighten connection or repair wiring.
Brush unit does not run Unit not properly connected to base unit Check connection; if necessary reconnect to
base unit.
Faulty transformer
Replace transformer.
Faulty rectifier Replace rectifier.
Blown fuse Replace fuse.
Faulty switch on brush unit Replace switch.
Faulty wiring on brush unit Replace wiring.
Carbon brushes worn Replace carbon brushes
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